sy87701l Micrel Semiconductor, sy87701l Datasheet - Page 10

• Manufacturer Part Number: sy87701l
• Description: Sy87701l / Sy87701al 3.3v 32-1250mbps Anyrate Clock And Data Recovery
• Manufacturer: Micrel Semiconductor

M9999-111506
[e-mail] or [phone]
Micrel, Inc.
RDIN
28-PIN APPLICATION EXAMPLE
Capacitor Pads
For AC-Coupling Only
C1 = C2 = 0.1µF
R1 = R2 = 680Ω
R3 = R4 = 1kΩ
(1206 format)
GND
See Table 1
C1
C2
130Ω
R8
R1
R3
V
LOOP FILTER
CC
V
NETWORK
GND
LED
D2
CC
REFCLK
(TTL)
R2
R4
120Ω
NC
R21
0.1µF
1.5µF
80Ω
For DC Mode Only
C1 = C2 = Shorted
R1 = R2 = 130Ω
R3 = R4 = 82Ω
C3
C13
14
GND
8
R5
Oscillator
XTAL
10
11
12
13
14
1
2
3
4
5
6
7
8
9
LFIN
DIVSEL1
RDINN
REFCLK
FREQSEL2
FREQSEL3
PLLSP
PLLSN
GND
RDINP
FREQSEL1
N/C
GND
VCCA
1
7
1
2
3
4
DIVSEL2
RDOUTN
RDOUTP
CLKSEL
5
RCLKP
RCLKN
TCLKP
TCLKN
PLLRN
PLLRP
VCCO
VCCO
VCC
10
6
CD
Note:
1. C5 and C10-C12 are decoupling capacitors and should be kept as close
24
23
22
18
16
27
26
25
20
19
17
15
28
21
to the power pins as possible.
(R17 - R22)
R6
5kΩ x 6
C4
50Ω
1.0µF
V
0.1µF
CC
C9
FB1
Ferrite Bead
BLM21A102
22µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
0.1µF
C8
If V
R9 through R14 = 220Ω
0.1µF
C10
C11
C12
CC
C5
V
CC
= +3.3V:
C7
0.1µF
0.1µF
0.1µF
0.1µF
C14
C15
C16
C17
C18
C19
22µF
V
Stand Off
CC
Pin 1 (VCCA)
Pin 28 (VCC)
Pin 23 (VCCO)
Pin 20 (VCCO)
C6
R7
1kΩ
J1
Diode D1
1N4148
SY87701L
V
CC